<!DOCTYPE html>
<html>

  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>本地网页</title>
    <style type="text/css">
      .btn {
        display: block;
        margin: 20px auto;
        padding: 5px;
        background-color: #007aff;
        border: 0;
        color: #ffffff;
        height: 40px;
        width: 200px;
      }

      .btn-red {
        background-color: #dd524d;
      }

      .desc {
        padding: 10px;
        color: #999999;
      }
    </style>
  </head>

  <body>
    <p class="desc">web-view 组件加载本地 html 示例，仅在 App 环境下生效。点击下列按钮，跳转至其它页面。</p>
    <div class="btn-list">
      <button class="btn" type="button" data-action="navigateTo">navigateTo</button>
      <button class="btn" type="button" data-action="redirectTo">redirectTo</button>
      <button class="btn" type="button" data-action="navigateBack">navigateBack</button>
      <button class="btn" type="button" data-action="reLaunch">reLaunch</button>
      <button class="btn" type="button" data-action="switchTab">switchTab</button>
      <button class="btn" type="button" data-action="getEnv">getEnv</button>
      <!-- <button class="btn" type="button" data-action="getTheme">获取主题</button> -->
    </div>
    <p class="desc">网页向应用发送消息。注意：小程序端应用会在此页面后退时接收到消息。</p>
    <div class="btn-list">
      <button class="btn btn-red" type="button" id="postMessage">postMessage</button>
    </div>
    <p class="desc"></p>本地视频</p>
    <video id="videoLocal" src="../../static/test-video/10second-demo.mp4" controls style="width: 100%;"></video>
    <p class="desc"></p>网络视频</p>
    <video id="videoWeb" src="https://qiniu-web-assets.dcloud.net.cn/video/sample/2minute-demo.mp4" controls style="width: 100%;"></video>
    <video id="videoCamera" style="width: 100%;"></video>
    <div class="btn-list">
      <button class="btn" type="button" data-action="openCamera">打开摄像头</button>
      <button class="btn" type="button" data-action="closeCamera">关闭摄像头</button>
      <button class="btn" type="button" data-action="getLocation">获取定位</button>
    </div>
    <p class="desc">文件选择</p>
    <div style="padding: 0 10px;">
      <p style="font-size: 14px;">&lt;input type="file" /&gt;</p>
      <input type="file" />
      <p style="font-size: 14px;">&lt;input type="file" accept="image/*" multiple /&gt;</p>
      <input type="file" accept="image/*" multiple />
      <p style="font-size: 14px;">普通input</p>
      <input placeholder="底部输入框" />
      <p style="font-size: 14px;">普通input2</p>
      <input placeholder="底部输入框2" />
      <p style="font-size: 14px;">普通input3</p>
      <input placeholder="底部输入框3" />
      <br />
      <p style="font-size: 14px;">普通textarea</p>
      <textarea placeholder="底部textarea"></textarea>
      <br />
      <a href="https://web-ext-storage.dcloud.net.cn/uni-app-x/pkg/hello-uniappx.apk" download>hello uni-app x
        apk下载（自动化测试使用）</a>
      <iframe width="100%" height="250px" srcdoc="<p>iframe中输入框示例</p>
        <p style=&quot;font-size: 14px;&quot;>普通input</p>
        <input placeholder=&quot;底部输入框&quot; />
        <p style=&quot;font-size: 14px;&quot;>普通input2</p>
        <input placeholder=&quot;底部输入框2&quot; />
        <p style=&quot;font-size: 14px&quot;>普通input3</p>
        <input placeholder=&quot;底部输入框3&quot; />
        <p style=&quot;font-size: 14px;&quot;>普通textarea</p>
        <textarea placeholder=&quot;底部textarea&quot;></textarea>">
      </iframe>
    </div>
    <!-- uni 的 SDK -->
    <script type="text/javascript" src="uni.webview.1.5.5.js"></script>
    <script type="text/javascript">
      function postMessage(action) {
        uni.webView.postMessage({
          data: {
            action
          }
        });
      }
      const isWeb = location.href && /^https?:/.test(location.href)
      // document.addEventListener('UniAppJSBridgeReady', function() {
      document.querySelectorAll('.btn-list').forEach(btnList => {
        btnList.addEventListener('click', function(evt) {
          console.log('按钮点击事件触发');
          if (isWeb) {
            alert('web端暂不支持此功能')
            return
          }
          console.log('evt: ',evt);
          var target = evt.target;
          console.log('target: ', target);
          if (target.tagName === 'BUTTON') {
            var action = target.getAttribute('data-action');
            console.log(action);
            switch (action) {
              case 'switchTab':
                uni.webView.switchTab({
                  url: '/pages/tabBar/API'
                });
                break;
              case 'reLaunch':
                uni.webView.reLaunch({
                  url: '/pages/tabBar/component'
                });
                break;
              case 'navigateBack':
                uni.webView.navigateBack({
                  delta: 1
                });
                break;
              case 'getEnv':
                uni.webView.getEnv((res) => {
                  postMessage(res)
                });
                break;
                /* case 'getTheme':
                  alert(getThemePreference())
                  break; */
              case 'getLocation':
                if (navigator.geolocation) {
                  navigator.geolocation.getCurrentPosition(
                    function(position) {
                      const locationData = {
                        latitude: position.coords.latitude,
                        longitude: position.coords.longitude,
                        accuracy: position.coords.accuracy
                      };
                      console.log('position: ',JSON.stringify(locationData));
                      alert(JSON.stringify(locationData));
                    },
                    function(error) {
                      console.error('获取位置失败:', error.message);
                      alert('获取位置失败: ' + error.message);
                    },
                    {
                      enableHighAccuracy: true,
                      timeout: 5000,
                      maximumAge: 0
                    }
                  );
                } else {
                  alert('您的浏览器不支持地理定位功能');
                }
                break;
              case 'openCamera':
                var constraints = {audio: true,video: {facingMode: "user"}};
                navigator.mediaDevices
                  .getUserMedia(constraints)
                  .then(function(mediaStream) {
                    var video = document.getElementById("videoCamera");
                    video.srcObject = mediaStream;
                    video.onloadedmetadata = function(e) {
                      video.play();
                    };
                  })
                  .catch(function(err) {
                    console.log(err.name + ": " + err.message);
                  }); // 总是在最后检查错误

                break;
              case 'closeCamera':
                var video = document.getElementById("videoCamera");
                if (video.srcObject) {
                  video.srcObject.getTracks().forEach(function(track) {
                    track.stop();
                  });
                  video.srcObject = null; // 清除视频源
                  video.load(); // 重新加载视频元素
                }
                break;
              default:
                uni.webView[action]({
                  url: '/pages/component/button/button'
                });
                break;
            }
          }
        })
      })
      // });
      document.querySelector("#postMessage").addEventListener('click', function() {
        if (isWeb) {
          alert('web端暂不支持此功能')
          return
        }
        postMessage('message')
      })

      /* function getThemePreference() {
        if (window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches) {
          return 'dark';
        } else if (window.matchMedia && window.matchMedia('(prefers-color-scheme: light)').matches) {
          return 'light';
        }
        return 'unknown';
      } */
    </script>
  </body>

</html>
